Home / 217,518,478.88-300,183,421.92-118,394,439.04

Finding the Fourth Proportional to 217,518,478.88, 300,183,421.92 and 118,394,439.04

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Solution

The fourth proportional to 217,518,478.88, 300,183,421.92 and 118,394,439.04 is: 163,388,637.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,518,478.88 : 300,183,421.92 = 118,394,439.04 : x
  2. Step 2: Convert to fraction form
    217,518,478.88/300,183,421.92 = 118,394,439.04/x
  3. Step 3: Cross multiply
    217,518,478.88x = 300,183,421.92 × 118,394,439.04
  4. Step 4: Simplify right side
    217,518,478.88x = 35,540,047,847,326,044
  5. Step 5: Solve for x
    x = 35,540,047,847,326,044/217,518,478.88
  6. Step 6: Final answer
    x = 163,388,637.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.